<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>设置元素的上内边距</title>
</head>

<body>
    <style>
        div {
            padding-top: 100px;
            color: lightblue;
        }
    </style>
    <div>这个元素的上内边距为100px</div>
</body>

</html>